33428897439 has 16 divisors (see below), whose sum is σ = 52023088128. Its totient is φ = 18695796192.

The previous prime is 33428897431. The next prime is 33428897449. The reversal of 33428897439 is 93479882433.

It is not a de Polignac number, because 33428897439 - 2³ = 33428897431 is a prime.

It is a super-2 number, since 2×33428897439² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33428897431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16933612 + ... + 16935585.

It is an arithmetic number, because the mean of its divisors is an integer number (3251443008).

Almost surely, 2^33428897439 is an apocalyptic number.

33428897439 is a deficient number, since it is larger than the sum of its proper divisors (18594190689).

33428897439 is a wasteful number, since it uses less digits than its factorization.

33428897439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33869254.

The product of its digits is 31352832, while the sum is 60.

The spelling of 33428897439 in words is "thirty-three billion, four hundred twenty-eight million, eight hundred ninety-seven thousand, four hundred thirty-nine".